Looking for C-128 Comal Cartridge or the C-128 Comal Demo Di

Hi there, looking for the rare C-128 Comal cartridge or at least the C-128 Comal Demo Disk. This has the "C128symb" symbol table and manual. Currently trying to translate the manual from Danish to English  Have been able, after years of searching, first getting a C64 Comal cartridge, then with help from a individual, make a modern C64 Comal cartridge. (Electronic components). Would like to be able to do the same with the C-128 Comal Cartridge. I have the assembly code of the 3 chips (from the internet). Take care.